之前代碼里寫的求富文本size的方法是:

 let contentH = (textLabel.attributedText)!.boundingRect(with: CGSize(width: screenWidth-38-32.s, height: 999), options: [.usesFontLeading,.usesLineFragmentOrigin], context: nil).size.height

我發(fā)現(xiàn)label的文字超出cell的高度了, 推測(cè)是此方法的問題, 改進(jìn)為:

 contentH = content.boundingRect(with: CGSize(width: screenWidth-                            48-64.s, height: 999), 
                     options: [ .usesLineFragmentOrigin], 
                     attributes: [NSFontAttributeName : Global.contentFont], 
                     context: nil).size.height

依然無效
通過log打出contentH的值, 再從圖形界面中讀出label的constraints的高度, 發(fā)現(xiàn)不一致, 通過計(jì)算猜測(cè)是, 二者差值應(yīng)為行間距, 故加上行間距, 最終解決問題, Fuck!

let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineBreakMode = .byCharWrapping
paragraphStyle.lineSpacing = 3
        
contentH = content.boundingRect(with: CGSize(width: screenWidth-48-64.s, height: 999),   
                  options: [ .usesLineFragmentOrigin],
                  attributes: [NSFontAttributeName : Global.contentFont, NSParagraphStyleAttributeName: paragraphStyle], 
                  context: nil).size.height